(English Medium) ICSE Class 10 - CISCE Important Questions

The acid which does not form acid salt by a basic radical.

State the terms/process for the following:

A type of salt formed by partial replacement of hydroxyl radicals with an acid radical.

Match the salts underlined in Column A with the most suitable method of preparation given in Column B.

You are provided with the list of chemicals mentioned below in the box:

Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:

Ferric chloride

When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H⁺, h₃O⁺, OH^-)

Choose the correct answer from the options given below:

A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is:

1) Calcium chloride

2) Ferrous chloride

3) Ferric chloride

4) Copper chloride

Identify the substance underlined, in the following case:

Cation that does not form a precipitate with ammonium hydroxide but forms one with sodium hydroxide.

State one relevant observation for given reactions:

Action of Sodium hydroxide solution on ferrous sulfate solution.

How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?

Identify the salts P and Q from the observations given below:

On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution, which is soluble in Ammonium hydroxide solution.

_____________ (AgCl / PbCl₂), a white precipitate is soluble in excess NH₄OH

Match the salts given in Column I with their method of preparation given in Column II.

State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions :
1) Copper sulphate solution

2) Zinc sulfate solution.

Identify the cations in the following case:

NaOH solution, when added to the Solution (A), gives a reddish brown precipitate

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

A basic oxide.

Choose the most appropriate answer from the following list of oxides which fit the description

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An oxide which dissolves in water forming an acid

Choose the most appropriate answer from the following list of oxides which fit the description

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An amphoteric oxide

State your observation When excess sodium hydroxide is added to calcium nitrate solution

Name the kind of particles present in sodium hydroxide solution.

State one relevant observation for the following.

Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.